func (t *taskQueueData) prepTask(c context.Context, ns string, task *tq.Task, queueName string) (*tq.Task, error) {
toSched := task.Duplicate()
if toSched.Path == "" {
toSched.Path = "/_ah/queue/" + queueName
}
if toSched.ETA.IsZero() {
toSched.ETA = clock.Now(c).Add(toSched.Delay)
} else if toSched.Delay != 0 {
panic("taskqueue: both Delay and ETA are set")
}
toSched.Delay = 0
switch toSched.Method {
// Methods that can have payloads.
case "":
toSched.Method = "POST"
fallthrough
case "POST", "PUT", "PULL":
break
// Methods that can not have payloads.
case "GET", "HEAD", "DELETE":
toSched.Payload = nil
default:
return nil, fmt.Errorf("taskqueue: bad method %q", toSched.Method)
}
if _, ok := toSched.Header[currentNamespace]; !ok {
if ns != "" {
if toSched.Header == nil {
toSched.Header = http.Header{}
}
toSched.Header[currentNamespace] = []string{ns}
}
}
// TODO(riannucci): implement DefaultNamespace
if toSched.Name == "" {
toSched.Name = mkName(c, "", t.named[queueName])
} else {
if !validTaskName.MatchString(toSched.Name) {
return nil, errors.New("INVALID_TASK_NAME")
}
}
return toSched, nil
}
